Chair



FIG. 1 is a perspective view for a chair;

FIG. 2 is a front elevational view of the design for a chair as seen in FIG. 1;

FIG. 3 is a rear elevational view of the design for a chair as seen in FIG. 1;

FIG. 4 is a side elevational right-side view of the design for a chair as seen in FIG. 1; and,

FIG. 5 is a top planar view of the design for a chair as seen in FIG. 1. 

The ornamental design for a chair, as shown and described. 